Cosmetic brush ferrule



FIG. 1 is a perspective view of a cosmetic brush ferrule showing our new design;

FIG. 2 is a front elevational view of the ferrule, it being noted that side and rear elevations if depicted would have the identical appearance;

FIG. 3 is a top plan view of the ferrule; and,

FIG. 4 is a bottom plan view of the ferrule. 

CLAIM The ornamental design for a cosmetic brush ferrule, as shown and described. 